Tool for removal of plastics material

Details Tool for removal of plastics material Tool for removal of plastics material

1991-12-03

1992-09-29

Hafer, Robert A.

Surgery

Instruments

Heat application

606 84, 606 92, 606169, A61B 1738, A61B 1700, A61B 1732, A61F 232

Patent

active

051510995

ABSTRACT:
A piezo electric ceramic transducer 1, a coupling horn 2 and a work surface 11 are connected a work horn 3. The work surface is ultrasonically vibrated and heats locally plastics material, causing it to flow through holes 12 in the work surface 11 to a space behind. The material can be removed when the tool is removed from the hole. The tool is particularly useful old cement from bones when revising a joint prosthesis.

REFERENCES:
patent: 517180 (1894-03-01), Wilson
patent: 718142 (1903-01-01), Muller
patent: 2740406 (1956-04-01), Tofflemire
patent: 2984241 (1961-05-01), Carlson
patent: 3093135 (1963-06-01), Hirschhorn
patent: 3794040 (1974-02-01), Balamuth
patent: 4248232 (1981-02-01), Engelbrecht
patent: 4702236 (1987-10-01), Tarabichy
patent: 4873969 (1989-10-01), Huebsch
patent: 5019083 (1991-05-01), Klapper

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